linux-kernel - Re: [RFC V1 RESEND 3/6] x86: Introduce the dynamic teardown function

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Message-ID: <alpine.DEB.2.21.1906290959400.1802@nanos.tec.linutronix.de>
Date:   Sat, 29 Jun 2019 10:01:43 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Megha Dey <megha.dey@...ux.intel.com>
cc:     bhelgaas@...gle.com, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, marc.zyngier@....com,
        ashok.raj@...el.com, jacob.jun.pan@...ux.intel.com,
        megha.dey@...el.com
Subject: Re: [RFC V1 RESEND 3/6] x86: Introduce the dynamic teardown
 function

Megha,

On Fri, 21 Jun 2019, Megha Dey wrote:
>  
> +void default_teardown_msi_irqs_grp(struct pci_dev *dev, int group_id)
> +{
> +	int i;
> +	struct msi_desc *entry;
> +
> +	for_each_pci_msi_entry(entry, dev) {
> +		if (entry->group_id == group_id && entry->irq) {
> +			for (i = 0; i < entry->nvec_used; i++)
> +				arch_teardown_msi_irq(entry->irq + i);

With proper group management this whole group_id muck goes away. You hand
in a group and clean it up and if done right then you don't need a new
interface at all simply because everything is group based.
 
Thanks,

	tglx